3RD WORKSHOP ON OROGENIC PROCESSES IN THE BOHEMIAN MASSIF PRESSECK / BAVARIA, 15-17 JUNE 2018 PROCEEDINGS Proceedings of the 3rd Workshop on Orogenic Processes in the Bohemian Massif 1 Proceedings of the 3rd Workshop on Orogenic Processes in the Bohemian Massif Orogenic Processes in the Bohemian Massif 3rd Workshop Presseck / Bavaria 15-17 June 2018 Cover image after G. Voll, 1960. Stoff, Bau und Alter in der Grenzzone Moldanubikum/ Saxothuringikum in Bayern unter besonderer Berücksichtigung gabbroider, amphibolitischer und kalksilikatführender Gesteine. – Beih. Geol. Jb., 42: 1-382, Hannover. Image was colorized by Bayerisches Landesamt für Umwelt (LFU) [https://www.lfu.bayern.de/geologie/geo_lehrpfade/geologischer_garten/fichtelgebirge/index.htm] 2 Proceedings of the 3rd Workshop on Orogenic Processes in the Bohemian Massif 3 Proceedings of the 3rd Workshop on Orogenic Processes in the Bohemian Massif Content Preface 6 Conference program 7 Abstracts 12 4 Proceedings of the 3rd Workshop on Orogenic Processes in the Bohemian Massif Participants Bahlburg, Heinrich, Münster, Germany Blau, Joachim, Frankfurt a.M., Germany Broska, Igor, Bratislava, Slovakia Dörr, Maja, Frankfurt a.M., Germany Dörr, Wolfgang, Frankfurt a.M., Germany Finger, Fritz, Salzburg, Austria Fritz, Harald, Graz, Austria Hauzenberger, Christoph, Graz, Austria Janousek, Voitech, Prague, Czech Republic Kirst, Frederik, Frankfurt a.M., Germany Knop, Erich, Salzburg, Austria Kohút, Milan, Bratislava, Slowakia Kruhl, Jörn, München, Germany Lexa, O., Prague, Czech Republic Lindner, Martin, Salzburg, Austria Magna, Tomas, Prague, Czech Republic Matzinger, Michael, Salzburg, Austria Megerssa, L.A., Prague, Czech Repbulic Militzer, Annemarie, Wiesbaden, Germany Neuwirth, N., Frankfurt a.M., Germany Pecskay, Z., Hungary Peřestý, V., Prague, Czech Republic Petronis, M., Las Vegas, New Mexico Rapprich, Vladislav, Prague, Czech Republic Reischmann, Thomas, Wiesbaden, Germany Riegler, Gudrun, Salzburg, Austria Schantl, Ph., Graz, Austria Schiller, David, Salzburg, Austria Sizova, Elena, Graz, Austria Sorger, Dominik, Graz, Austria Svojtka, Martin, Prague, Czech Republic Tomek, Filip, Pragure, Czech Repbulic Uher, Pavel, Bratislava, Slovakia Vacek, František, Prague, Czech Republic Verner, Kryštof, Prague, Czech Republic Waitzinger, Michael, Salzburg, Austria Žák, Jiří, Prague, Czech Republic Zeh, Armin, Karlsruhe, Germany Zulauf, Gernold, Germany 5 Proceedings of the 3rd Workshop on Orogenic Processes in the Bohemian Massif Preface The third Bohemian-Massif meeting in Presseck-Neumüle follows two successfull meetings organized in 2014 and 2016 by Czeck colleagues in the Böhmerwald/Šu- mava. The main goal of these biennial meetings is to promote across-border coope- rations and discussions dealing with the evolution of the Bohemian Massif, the largest ‚outcrop‘ of basement rocks in central Europe. The 2018 Presseck meeting is situated on top of the Münchberg Massif, which forms a tectonic klippe of high-grade metamorphic rocks surrounded by very low-grade rocks. Such isolated crystalline domains and their inversion in metamorphic grade had attracted the attention of early workers for decades and led to the first nappe model formulated for the Variscides by F.E. Suess in 1912. We think that this place and its scientific tradition is appropriate to present and discuss new results and concepts related to the evolution of the Bohemian Massif and the Variscides. The help and support of colleagues during the preparation and organization of this meeting is highly acknowledged. We wish all participants an enjoyable stay. Glück Auf! / Zdař Bůh Participants of the 2016 Sušice Meeting 6 Proceedings of the 3rd Workshop on Orogenic Processes in the Bohemian Massif Conference Program Friday, June 15th: Pre-Conference Field Trip A whole-day traverse across the Vogtland and Frankenwald Departure at 8:00 from Presseck-Neumüle, lunch in Stadtsteinach, return to the hotels at around 18:00; dinner and beer will be served after 18:00 in Neumühle Saturday, June 16th: Conference 07:30–08:15 Breakfast 08:30–10:30 Conference talks 10:30–11:00 Coffee break 11:00–13:00 Conference talks 13:00–14:30 Lunch at Neumühle 14:30–16:00 Conference talks 15:45–16:15 Coffee break 16:15–17:00 Conference talks 17:00–18:00 Discussion and Poster Session 19:00 Social evening with dinner and beer in Gasthof Zeitler, Seifersreuth Sunday, June 17th: Post-Conference Field Trip Traverse across the northern Oberfalz Departure at 9:00 from Neumühle, lunch in Windischeschenbach End of the field trip in Flossenbürg 7 Proceedings of the 3rd Workshop on Orogenic Processes in the Bohemian Massif Talks (Saturday, June 16th) Session 1: Saxothuringian domain 8:30 – 8:45 Stein, E. & Dörr, W.: Provenance of the Precambrian basement in the Rheic suture zone of the Central European Variscides (Northern Phyllite Belt and Mid-German Crystalline Zone) 8:45 – 9:00 Kogklin, N., Zeh, A., Franz, G., Schüssler, U., Glodny, J., Gerdes, A. and Brätz, H. The geochronological-geochemical record of the Münchberg Massif, NE Bavaria (Germany): From Cadomian magmatic arc to Rheic ocean closure 9:00 - 9:15 Rapprich, V., Casas-García, R., Breitkreuz, C., Svojtka, M., Lapp, M. and Stanek, K. New volcanic facies, gamma-ray spectrometry and age constraints of the Teplice Rhyolite, Altenberg-Teplice Caldera (Eastern Erzgebirge/Krušné Hory Mts.) 9:15 – 9:30 Tomek, F., Svojtka, M., Opluštil, S., Rapprich, V., Míková, J. and Casas-García, R. Age constraints on the evolution of the Altenberg–Teplice caldera and distribution of volcanic products in the Permo–Carboniferous basins, Bohemian Massif Session 2: Moldanubian and Teplá-Barrandian domains 9:30 – 9:45 Finger, F., Gerdes, A., Verner, K., Žak, J. Resolving the growth history of the South Bohemian Batholith by means of high-precision ID- TIMS U-Pb zircon and monazite dating 9:45 – 10:00 Janoušek, V., Tabaud, A.-S., Schulmann, K., Maierová, P., Lexa, O., Verner, K. Deep structure and evolution of Himalayan-type collisional orogens – lessons learned from the Variscan Mg–K plutons in Central Europe 8 Proceedings of the 3rd Workshop on Orogenic Processes in the Bohemian Massif 10:00 – 10:15 Schiller, D. and Finger, F. Application of Ti-in-zircon thermometry in the petrologic study of granite 10:15 – 10:30 Lindner, M., Dörr, W. and Finger, F. Is the Drosendorf Unit in Lower Austria part of the Avalonian Superterrane? +++++++++++++++++++++++++10:30 – 11:00 Coffe Break ++++++++++++++++++++++++ 11:00 – 11:15 Schantl, Ph., Hauzenberger, C., Finger, F., Linner, M., Fritz, H., Hoang, N., Sorger, D. and Sizova, E. Petrogenesis and prograde metamorphic history of granulites from the southeastern Moldanubian Superunit (Bohemian Massif) 11:15 – 11:30 Sorger, D., Hauzenberger, C, Linner, M., Fritz, H., Schantl, P. and Sizova E. Two garnet generations give evidence of a polymetamorphic evolution of granulite facies rocks from the Drosendorf nappe – Moldanubian Superunit 11:30 – 11:45 Sizova, E., Hauzenberger, C., Gerya, T., Fritz, H. and Faryad, S.W. Incorporation of mantle peridotites into the Moldanubian Zone of the Bohemian Massif: Insights from numerical modelling 11:45 – 12:00 Pecskay, Z., Verner, K. and Megerssa, L.A. The cooling history of high-grade rocks in the southwestern Moldanubian Zone using the K- Ar dating method 12:00 – 12:15 Megerssa, L., Verner, K., Tomek, F., Pour, O. and Žák, J. Fabric pattern of the Bavarian Zone; implications for the reconstruction of a late-Variscan tectonothermal event 9 Proceedings of the 3rd Workshop on Orogenic Processes in the Bohemian Massif 12:15 – 12:30 Verner, K., Žák, J., Megerssa, L.A., Tomek, F. and Pour, O. Late-Variscan geodynamic evolution of the southern Moldanubian Zone (Bohemian Massif) 12:30 – 12:45 Peřestý, V., Lexa, O., Štípská, P., Jeřábek, P., Racek, M. The pre-Variscan metamorphic structure at the western margin of the Teplá-Barrandian Domain – comparison of the Teplá and Domažlice Crystalline Complex (Bohemian Massif) 12:45 – 13:00 Žák, J., Svojtka, M. and Opluštil, S. Paleotopography reversals and mantle delamination in the Variscan orogenic belt revealed by detrital zircon and monazite geochronology in post-collisional sedimentary basins +++++++++++++++++++++++++++ 13:00 – 14:30 Lunch ++++++++++++++++++++++++++ Session 3: Moravo-Silesian, Carpathian and Alpine domains 14:30 – 14:45 Tomek, F., Petronis, M.S., Žák, J., Vacek, F. and Verner, K. Structure, magnetic anisotropy and paleomagnetism of the Lower Carboniferous Moravosilesian Culm basin of the Bohemian Massif: oroclinal rotation, strike slip translation, or just pure shear shortening? 14:45 – 15:00 Broska, I. and Hrdlička, J. Malá Fatra granitic suites (Western Carpathians): result of composite granite massif? 15:00 – 15:15 Kohút, M. The Devonian volcano-sedimentary products in the Western Carpathians. 15:15 – 15:30 Uher, P. Variscan granitic pegmatites of the Western Carpathians: mineral composition, age, petrogenetic evolution and comparison with pegmatites of the Bohemian Massif 10 Proceedings of the 3rd Workshop on Orogenic Processes in the Bohemian Massif 15:30 – 15:45 Fritz, H., Eichinger, S., Mandl, M., Hauzenberger, C., Schantl, P., Sorger, D. and Sizova, E. Pre-Alpine evolution of the Eastern Alps, a linkage to the Bohemian Massif +++++++++++++++++++++++++15:45 – 16:15 Coffe Break ++++++++++++++++++++++++ Session 4: Late- to post-Variscan evolution of the Bohemian Massif 16:15 – 16:30 Vacek, F., Žák, J., Roberts, N.M.W. and Sláma, J. New insights into the faulting of the Prague Syncline